package com.yang.serialport.utils;

import java.math.BigInteger;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.security.MessageDigest;

import org.junit.Test;

import com.akeil.flash.config.EDeviceType;
import com.akeil.flash.config.IConstantsConfig;

public class AppMD5Util {
	public static String author = "hitsnow";
	public static String product = "flash";
	public static String salt = "hitsnow";
	public static String mac="";
	
	static {
		if (IConstantsConfig.deviceType == EDeviceType.MANUAL) {
			product = "manual";
		}

		if (IConstantsConfig.deviceType == EDeviceType.AUTO) {
			product = "auto";
		}

	}
	/**
	 * 对字符串md5加密(小写+字母)
	 *
	 * @param str
	 *            传入要加密的字符串
	 * @return MD5加密后的字符串
	 */
	public static String getMD5(String str) {
		try {
			// 生成一个MD5加密计算摘要
			MessageDigest md = MessageDigest.getInstance("MD5");
			// 计算md5函数
			md.update(str.getBytes());
			// digest()最后确定返回md5 hash值，返回值为8为字符串。因为md5 hash值是16位的hex值，实际上就是8位的字符
			// BigInteger函数则将8位的字符串转换成16位hex值，用字符串来表示；得到字符串形式的hash值
			return new BigInteger(1, md.digest()).toString(16);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 对字符串md5加密(大写+数字)
	 *
	 * @param str
	 *            传入要加密的字符串
	 * @return MD5加密后的字符串
	 */

	public static String MD5(String s) {
		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

		try {
			byte[] btInput = s.getBytes();
			// 获得MD5摘要算法的 MessageDigest 对象
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			// 使用指定的字节更新摘要
			mdInst.update(btInput);
			// 获得密文
			byte[] md = mdInst.digest();
			// 把密文转换成十六进制的字符串形式
			int j = md.length;
			char str[] = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte byte0 = md[i];
				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
				str[k++] = hexDigits[byte0 & 0xf];
			}
			return new String(str);
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	public static void main(String[] args) {
		try {
			mac = IpUtil.getLocalMac("127.0.0.1");
		} catch (SocketException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		} catch (UnknownHostException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
		
		String md52 = getMD5("3A57EBA5" + author + product);
		
		//String md5 = MD5("EDD2E44C");
		//String md52 = getMD5("2FF3E5E0" + author + product);
		//String md52 = getMD5("3D8A59DA" + product);
		System.out.println(md52);
		
	}
	
	@Test
	public void TestMD5(){
		String md5 = MD5(ByteUtils.intToHexString(Integer.parseInt(SoftwareGrantControl.getHardDiskSN("c")), true) + author + product);
		System.out.println(md5);
		String md52 = getMD5(ByteUtils.intToHexString(Integer.parseInt(SoftwareGrantControl.getHardDiskSN("c")), true) + author + product);
		System.out.println(md52);
	}
}